Home>Head to Head>Atlantex Power vs Constellation
Back to All ProvidersRates last checked: October 22, 2026
Atlantex Power
vs
Constellation

Atlantex Power vs Constellation: Texas Electricity Head-to-Head

Atlantex Power offers 104 plans starting at 5.9c/kWh while Constellation has 13 plans from 11.8c/kWh across all 6 Texas TDU service areas. Here is how their rates, terms, renewable options, and fees compare.

Atlantex Power
Constellation
104
Total Plans
13
5.9c
Lowest Rate
at 1,000 kWh
11.8c
14.8c
Average Rate
at 1,000 kWh
13.9c
17.7c
Rate Spread
max minus min
4.5c
9-36 mo
Term Range
12-14 mo
24 (23%)
100% Renewable
plan count
0 (0%)
2
Solar Buyback Plans
0
0
Time-of-Use Plans
0
0
Prepaid Plans
0
$20 - $150 (mixed fee types)
Cancellation Fee
$150 flat
6 of 6
Service Areas
of 6 TDUs
6 of 6

Rate Curve Comparison

Atlantex Power ConstellationBest available rate at each usage level
6c9c12c15c500 kWh1,000 kWh2,000 kWhMonthly Usage9.2c5.9c8.5c13.1c11.8c12.6c
Rate Curve Winner: Atlantex Power

Lowest average rate across all usage levels (7.9c/kWh vs 12.5c/kWh). Consistent pricing regardless of how much electricity you use.

Shows the best available all-in rate from each provider at 500, 1,000, and 2,000 kWh usage levels. The best plan may differ at each tier.

Best Plan Per Term Length

TermAtlantex Power Best PlanRateFeeConstellation Best PlanRateFeeWinner
12 MonthRadiance1000 12EFL5.9c$150 flat12 Month Usage Bill Credit EFL11.9c$150 flatAtlantex Power
24 MonthRadiance1000 24EFL6.4c$150 flat14 Month Usage Bill CreditEFL11.8c$150 flatAtlantex Power
36 MonthRadiance1000 36EFL6.8c$150 flatN/AN/AN/AAtlantex Power

Plan Type Breakdown

Atlantex Power

Fixed Rate104 plans (5.9c - 23.6c)
Variable Rate0 plans
Time-of-Use0 plans
Prepaid0 plans
100% Renewable24 plans (avg 14.6c)

Constellation

Fixed Rate13 plans (11.8c - 16.3c)
Variable Rate0 plans
Time-of-Use0 plans
Prepaid0 plans
100% Renewable0 plans

Cancellation Fee Comparison

Atlantex Power

Flat Fee Plans54 plans
Per-Month-Remaining Plans50 plans
Average Fee$87.50
No-Fee Plans0 plans (0%)
Fee Range$20 - $150 (mixed fee types)

Constellation

Flat Fee Plans13 plans
Per-Month-Remaining Plans0 plans
Average Fee$150
No-Fee Plans0 plans (0%)
Fee Range$150 flat

Renewable Energy Deep Dive

Atlantex Power

100% Renewable Plans24 plans (23%)
Partial / Non-Renewable80 plans
Avg Renewable Rate14.6c
Avg Overall Rate14.8c
Green Premium-0.2c

Constellation

100% Renewable Plans0 plans (0%)
Partial / Non-Renewable13 plans
Avg Renewable RateN/A
Avg Overall Rate13.9c
Green PremiumN/A

Full Plan Tables

or

Atlantex Power (0 plans)

No plans available in this service area.

Constellation (0 plans)

No plans available in this service area.

Which Provider Fits You Better?

Looking for the Lowest Rate?

Better fit: Atlantex Power

Atlantex Power has the lower advertised rate at 5.9c/kWh (1,000 kWh usage), compared to 11.8c/kWh.

Want a Long-Term Price Lock?

Better fit: Atlantex Power

Atlantex Power has the better option for locking in a rate on a 24-month or longer contract.

Going Green?

Better fit: Atlantex Power

Atlantex Power offers more 100% renewable plans (24 vs 0).

Need Flexibility?

Better fit: Atlantex Power

Atlantex Power uses a per-month cancellation structure, so your fee decreases over time - making it easier to switch later.

These rates are based on 1,000 kWh average usage. Your actual savings depend on YOUR usage pattern.

WattTrim analyzes your real Smart Meter data to find the plan that saves you the most - across all providers, not just these two.

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Frequently Asked Questions

Is Atlantex Power cheaper than Constellation?

Based on current plan data, Atlantex Power has the lower advertised rate, offering plans starting at 5.9c/kWh compared to 11.8c/kWh from the other provider at 1,000 kWh of usage. Your actual cost depends on your usage pattern and the specific plan you choose.

Does Atlantex Power offer renewable energy plans compared to Constellation?

Atlantex Power offers 24 plans (23% of its lineup) at 100% renewable energy, while Constellation offers 0 plans (0% of its lineup).

What are the cancellation fees for Atlantex Power vs Constellation?

Atlantex Power charges $20 - $150 (mixed fee types) on its tracked plans, while Constellation charges $150 flat on its tracked plans. Always review the Electricity Facts Label (EFL) for the exact fee structure before enrolling.

Which provider has more plan options in Texas, Atlantex Power or Constellation?

Atlantex Power currently offers more plan options across the Texas TDU areas we track, with 104 plans compared to 13.

Can I switch from Atlantex Power to Constellation?

Yes. Texas is a deregulated electricity market, so you can switch retail electric providers at any time. If you are still under contract with your current provider, check for an early termination fee before switching. New service with either provider typically starts within 1 to 5 business days of enrollment.